Resonator Mode Spacing (Free Spectral Range)

Resonator Type Refractive Index (n) Resonator Length (L)

Input Parameters:
n = refractive index
L = resonator length

[Resonator Diagram Placeholder]

$$ \mathrm{FSR} = \frac{c}{2 n L} $$

FSR = ?

Output Parameter:
FSR = Free spectral range (mode spacing)